Improvement in apparatus for tanning



No. 33,448. PATENTED OCT. 8, 1.861;

s. J. PATTERSON.

APPARATUS FOR TANNING.

m: Norm; PETERS cu. PHOYO-L mo \vAwm ma NITED TATES.

S'lEPI-IEN J. PATTERSON, or

nmnenron'r, conuncrionfir.

IMPROVEMENT IN APPARATUS FOR TANNING.

Specification forming part of Letters Patent No. 33,448, dated October 8, 1861.

ToaZZ-whom it may concern.-

Be it known that I, STEPHEN J. PATTERSON,

. of the city of Bridgeport, in the county of Fairfield and State of Connecticut, have invented a new and useful Machine for Tanning Leather; and I do hereby declare that the-following is 'a full andexact description ing frame containing a number of slatsupon "which the hides are to be hung, so that the hides may remain suspended in the liquor and may keep the liquor agitated whenever" said rocking frameis kept in motion. Myinvention further consists in connecting to said rocking frame one or more paddles, which shall move with said frame near the bottom of the wit and agitate the liquor in said vat. My invent-ion will be more fully understood by reference to the accompan ying'd rawin gs.

in'which- I A represents the ordinary vat used by tauners, While the dotted lines of the drawing are intended to expose to view the interior arrangements thereof. Across the center of the vat and on the top thereof I place the piece of timbei' B, the ends of which rest upon the sides-of the-vat and are fitted so as to turn in boxes placed at C C. To this cross-piece B, I-fit the frame D, which .is made just large enough to fit the'inside of the vat and allow sufficient room to play up and down. This frameis made of wood of about two-by seven inches, and has notches cut in the upper part,

of-the -sidesticks, as shown at E 'E, sq that the wooden slats F F may be fitted in them. The movable wooden pieces G.G are placed over the' ends of the slats F F and are held down. to their placeby the buttons H H. By turning'said wooden buttons and removing the sticks G G the slats may be removed from the frame, if placed in it, at pleasure. The

frame D is hung just -f3rll' enough below the top of the vat to allow the liquor in the vat to come above the top of the slats'F F when said frame is in a horizontal position. I I rep resent paddles which are connected firmly to the frameD by means of the arms J J. There isalso secured to 'the f ramo D a lever-arm K, which is to be used by the hand. to give the frame a rocking motion.

When. I desire to tan hides by and with the aid of this invention, I take out theslats F F from the frame 1.) and hangone hide over each slat, so that the ends of the hides may not rest upon the bottom of the vat. I the. place the slats with the hides thereon in the frame and secure them in their position.

\Vhenever it is necessary to agitate theliqnor in the vat it is only necessary to move the lever K, and thus impart a rockingmqtion to the frame D. It is found that'the move-v ment of the frame and the hides hanging upon the slats is sufficient to agitate the liquor to the necessary degrce, although I have in this case added the paddles I I in order toincrease the agitation, if desired.

With the use of this machine it is not necessaryto remove the hides from the vat until they are fully tanned, while the amount of time saved in tanning the leather is less than half of the, time required by the com mon method, any at thesamc time a great sav ing in labor is efiected.

I amaware that hides have heretofore been suspended from slafs'in frames placed over vats, and I do not therefore claim that device generally; but

Nhat Iclaim as myinvention, and desire to secure by Letters Patent, is I 1. Attaching to the top of a tanlners vat a frame hung upon its center, substa-ntiallyas described, so arranged and constructed that the hides to be tanned may be suspended from said frame and maybe set in motionby rocking said frame upon its center.

2. In combination with the rockingfram'e, the paddles I L'substantially as. and for the purpose described.

' STEPHEN J. rA'rrERsoNj Witnesses;

I BENJN. K.' MILLS,

WILLIAM BOSTON. 

